Computer and Modernization ›› 2023, Vol. 0 ›› Issue (12): 87-93.doi: 10.3969/j.issn.1006-2475.2023.12.015

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Hand Hygiene Action Quality Assessment Based on Multi-source Action Information

  

  1. (1. School of Biomedical Engineering, Anhui Medical University, Hefei 230032, China;
    2. Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei 230088, China;
    3. Anhui University, Hefei 230039, China)
  • Online:2023-12-24 Published:2024-01-29

Abstract: Abstract: The research on hand hygiene action quality assessment plays a crucial role in the intervention and improvement of hand hygiene behaviors. To address this task, this paper takes two different types of hand hygiene action information from video data and differential image data as inputs, creating a hand hygiene action quality assessment method based on multi-source action information. The algorithm consists of an action segmentation module and an evaluation module. In the action segmentation module, the feature segments associated with each step are divided by the position index. In the evaluation module, the differential image features obtained by the inter-frame difference method and ResNet50 feature extractor are introduced to combine with the past method (combining the optical flow and the I3D feature information of RGB) to capture the subtle hand motion information. The feature segments obtained by borrowing the segmentation module are processed and input to the hand hygiene information decoder based on the cross-attention mechanism, and the comprehensive features that fuse the details of hand motion are obtained. Next, these features are used to calculate the evaluation score of each step, and finally the evaluation score of each step is added to obtain the final evaluation result. The algorithm is verified by using the public data set HHA300. In the evaluation task, the evaluation index  ρ and  R-[ℓ]2(×100)achieves 0.86 and 0.95 respectively, which fully proves that the algorithm can accurately evaluate the motion quality of hand hygiene.

Key words: Key words: hand hygiene, action quality assessment, difference images, frame difference method, action segmentation, cross-attention

CLC Number: